Car rim vs Motorcycle rim

[robmorg]

Questions.... ???

I'm admittedly not an expert on this subject, but this discussion is not making a lot of sense to me.

First of all, what Bob (finless) was saying is that the tire dealer he took his Spyder rim to, verified that it was indeed a rim with a car bead design. That's what I've always understood, as well. Why does anyone think that may not be so?

Secondly, the CAD drawing shows distinctly different bead formats. In looking at those measurements, wouldn't it be obvious if you tried to put a car tire with a 17.5 mm bead flange on a rim that only had a 14 mm flange. Wouldn't you see a 3.5 mm gap at the top, as the drawing indicates? The gap would also be accentuated by the difference in the bead lock diameter of the rim, which is also quite substantial. I would think that would tend to push the tire up even higher on the rim flange, as the bead would not properly seat.

I know this question has come up before, but what I do not remember is why folks think that our Spyder rims are designed to motorcycle rim specs.

Ron (either rnet or bajaron), are either of you listening? What are your thoughts on this?

 

[Bob Denman]

I'll give Ron and Derek Netzley a call, and see what they think... :thumbup:

 

[jaherbst]

You buy your ticket you take your chances. That's what life is all about. Me, I'll stick with what is recommended by BRP and check pressure in all three tires once a week. 20 front 30 back--low pressure is the biggest rubber eater known to Spyders and motorcycles.

I am a personal friend of Bruce Halle Jr, owner and President of Discount Tire. He lives a couple miles from here. Our wives were long time Business partners. When BRP wrote D/T a letter not to sell other than recommended tires for the Spyders, D/T had no choice in this sue crazy world. Bruce rides a Harley and we have ridden together many times. They own over 1200 stores all over the country and have one of the top business models of any corporation in the US. You have no idea how many people have blowouts for one reason or another and have an accident. Guess who the attorneys like to blame and sue? So no, I cannot blame D/T for not selling you a tire that BRP does not recommend.

Motorcycle tires are softer for a better grip and usually are higher speed rated. I would think this also applies to the Spyders. This thread reminds me a lot of the "oil" threads, loaded with very little knowledge and tons of uneducated opinions. And throw in a few who always go against the grain and think they know better than years of development an engineering. On the other hand that is what makes this forum interesting but can be very misleading for our "newbies". Not to mention confusing.

Jack

 

[Ex-Rocket]

There are lots of "Darkside" riders in both the GW and Spyder world most have nothing bad to say about it. I am all for informed choices. :thumbup:

You should also visit the VTX & Triumph Rocket forums. There are a lot of darksiders there too. I can not remember anyone mentioning any problems with beads of tire not aligning or sealing properly. I was a darksider with my Rocket for over 25,000 miles.

 

[PaladinLV]

There are reasons for stating for motorcycle use on the tires we use.

Your statement is incorrect.

The tires say, "For Motorcycle Use ONLY!"

So some dumb dumb doesn't try to put these on a car!

AJ

 

[robmorg]

The tires say, "For Motorcycle Use ONLY!"

So some dumb dumb doesn't try to put these on a car!

AJ

:agree: Makes sense to me. Without evidence to the contrary, I would have to say that I readily agree with AJ's conclusion above.

 

[PaladinLV]

I must have been asleep, but when did HONDA start building a trike?
I am referring directly to Honda and not an add on like Lehman.

Reason for asking is you are making the leap that a GW rim is same as Spyder RIM but a GW Trike rear is NOT a Honda Rim.

Second, Harley and Harley via Lehman have been building Trikes for years. The Harley comes with "motorcycle" rear tires.
Riders have been swapping them out for years for car tires without any known bead problems. Given the size of the HOG community (the largest in the World) if there was a known problem the HOG members would be aware of it.

AJ

This was brought up in another thread and I believe it needs it's own thread. When mounting a car tire on a motorcycle rim these are the reasons it is not recommended.

Originally Posted by Bob Denman I remember that there were diagrams of the differences between the bead on a car rim, and the one on a motorcycle rim...
Does anybody remember who posted those pictures; I lost my computer that had them... pps:


http://www.goldwingfacts.com/forums/...-rim-tire.html


The Spyder rim does not look like a car rim to me. More like the GW rim above. Look at the huge bead humps just like the motorcycle rim above. Car rims don't have that. There is no dropwell either. Only difference I see is the cut down on the sprocket side to allow for an angled Schrader valve to be used.

 

[Magdave]

You buy your ticket you take your chances. That's what life is all about. Me, I'll stick with what is recommended by BRP and check pressure in all three tires once a week. 20 front 30 back--low pressure is the biggest rubber eater known to Spyders and motorcycles.

I am a personal friend of Bruce Halle Jr, owner and President of Discount Tire. He lives a couple miles from here. Our wives were long time Business partners. When BRP wrote D/T a letter not to sell other than recommended tires for the Spyders, D/T had no choice in this sue crazy world. Bruce rides a Harley and we have ridden together many times. They own over 1200 stores all over the country and have one of the top business models of any corporation in the US. You have no idea how many people have blowouts for one reason or another and have an accident. Guess who the attorneys like to blame and sue? So no, I cannot blame D/T for not selling you a tire that BRP does not recommend.

Motorcycle tires are softer for a better grip and usually are higher speed rated. I would think this also applies to the Spyders. This thread reminds me a lot of the "oil" threads, loaded with very little knowledge and tons of uneducated opinions. And throw in a few who always go against the grain and think they know better than years of development an engineering. On the other hand that is what makes this forum interesting but can be very misleading for our "newbies". Not to mention confusing.

Jack

So BRP DID tell Discount tire not to sell Kuhmo's to us. Now who was it that said they did not? Hmmm crickets.:roflblack: Steve from BRP swears they didn't do it.

Hi everyone,

No - BRP doesn't advise or order independent retailers on what they can or can't sell. It's entirely possible that for liability or other reasons, a retailer might decide against the sale of a tire that was not designed / tested on the vehicle it will be installed on, but that is up to the retailer themselves.

That being said, we always recommend installing OEM tires on all Can-Am Spyder Roadsters as this has an impact on the dynamic behavior of the unit (notably, the Vehicle Stability System).

Steven M.
Customer Satisfaction, Social Media / Dealer Tech Support Team Lead
BRP

Follow us on Twitter @BRPCare
​

 

[Deer Slayer]

Don't ya just hate the fiery death when one runs a car tyre!:yikes::bdh:

 

[Chupaca]

But then....

Your statement is incorrect.

The tires say, "For Motorcycle Use ONLY!"

So some dumb dumb doesn't try to put these on a car!

AJ

Works both way, I have never seen anywhere on any automotive tire a statement like "Suitable for motorcycle use". Although I have seen trailer tires say not suitable for automotive use...:dontknow:

 

[Highwayman2013]

I am not a "hand wringer" and will continue to run a car on my spyder until something better comes along. If you would rather run a Kenda it doesn't bother me. Maybe the new Arachnid Lamont is testing will be great, who knows.

 

[PaladinLV]

Works both way, I have never seen anywhere on any automotive tire a statement like "Suitable for motorcycle use". Although I have seen trailer tires say not suitable for automotive use...:dontknow:

Your statement is an Apple and Oranges.
It doesn't say "For CAR use ONLY," does it! :banghead:

AJ

 

[Bob Denman]

 

[Firefly]

You buy your ticket you take your chances. That's what life is all about. Me, I'll stick with what is recommended by BRP and check pressure in all three tires once a week. 20 front 30 back--low pressure is the biggest rubber eater known to Spyders and motorcycles.

I am a personal friend of Bruce Halle Jr, owner and President of Discount Tire. He lives a couple miles from here. Our wives were long time Business partners. When BRP wrote D/T a letter not to sell other than recommended tires for the Spyders, D/T had no choice in this sue crazy world. Bruce rides a Harley and we have ridden together many times. They own over 1200 stores all over the country and have one of the top business models of any corporation in the US. You have no idea how many people have blowouts for one reason or another and have an accident. Guess who the attorneys like to blame and sue? So no, I cannot blame D/T for not selling you a tire that BRP does not recommend.

Motorcycle tires are softer for a better grip and usually are higher speed rated. I would think this also applies to the Spyders. This thread reminds me a lot of the "oil" threads, loaded with very little knowledge and tons of uneducated opinions. And throw in a few who always go against the grain and think they know better than years of development an engineering. On the other hand that is what makes this forum interesting but can be very misleading for our "newbies". Not to mention confusing.

Jack

I was a holdout as well pertaining to not using aftermarket tires... used to preach the 'BRP knows best' line.....but after switching I will NEVER go back to the crappy BRP tires. I've bought car tires from Discount and they've mounted them (fronts) with no problems at all. Bridgestone Potenza's are my favorite for the fronts. The rear I've bought from them (various brands), but they cannot mount due to machine limitations.

Also, over-pressure on the Spyder tires will wear them more than under-pressure in my opinion... especially the rear. 30 PSI is too high for the rear when using an OEM tire.. it will make the center wear out sooner than the edges. Around 26 PSI is the sweet spot for the OEM rear. I've got over 100,000 miles on the two Spyders I've owned, and the BRP tires are just horrible... plenty of problems with wobble, wear, etc. I rode my first 50,000 miles using OEM tires..... what a huge mistake that was.

I also don't by the line that any aftermarket tire seller was told by BRP not to sell tires.... I think that's just a way to pass the buck and get out of doing them out of fear of liability. I take the rims in to have the tires mounted and while I have told them what they are for, I see no reason why to even tell them... for all they know it's just for a cool go-cart I built.... lol.

I've dealt with Discount for 30+ years and they've always taken great care of me.

 

[BLUEKNIGHT911]

TIRE MACHINE

I was a holdout as well pertaining to not using aftermarket tires... used to preach the 'BRP knows best' line.....but after switching I will NEVER go back to the crappy BRP tires. I've bought car tires from Discount and they've mounted them (fronts) with no problems at all. Bridgestone Potenza's are my favorite for the fronts. The rear I've bought from them (various brands), but they cannot mount due to machine limitations.

Also, over-pressure on the Spyder tires will wear them more than under-pressure in my opinion... especially the rear. 30 PSI is too high for the rear when using an OEM tire.. it will make the center wear out sooner than the edges. Around 26 PSI is the sweet spot for the OEM rear. I've got over 100,000 miles on the two Spyders I've owned, and the BRP tires are just horrible... plenty of problems with wobble, wear, etc. I rode my first 50,000 miles using OEM tires..... what a huge mistake that was.

I also don't by the line that any aftermarket tire seller was told by BRP not to sell tires.... I think that's just a way to pass the buck and get out of doing them out of fear of liability. I take the rims in to have the tires mounted and while I have told them what they are for, I see no reason why to even tell them... for all they know it's just for a cool go-cart I built.... lol.

I've dealt with Discount for 30+ years and they've always taken great care of me.

That's interesting about them not being able to mount the rear tire with their equipment.!!!......The guy I use had no problem and His machine is an older model ( hydraulic, of course ) ........So how did/do you get the rear done ? ? ?.....Mike :thumbup:

 

[Exditchdigger]

my 2 cnts worth

I'm not a tire expert but I don't believe a spyder uses a tire at all like a motorcycle does but more like a automobile.

 

[r1100rider]

I was a holdout as well pertaining to not using aftermarket tires... used to preach the 'BRP knows best' line.....but after switching I will NEVER go back to the crappy BRP tires. I've bought car tires from Discount and they've mounted them (fronts) with no problems at all. Bridgestone Potenza's are my favorite for the fronts. The rear I've bought from them (various brands), but they cannot mount due to machine limitations.

Also, over-pressure on the Spyder tires will wear them more than under-pressure in my opinion... especially the rear. 30 PSI is too high for the rear when using an OEM tire.. it will make the center wear out sooner than the edges. Around 26 PSI is the sweet spot for the OEM rear. I've got over 100,000 miles on the two Spyders I've owned, and the BRP tires are just horrible... plenty of problems with wobble, wear, etc. I rode my first 50,000 miles using OEM tires..... what a huge mistake that was.

I also don't by the line that any aftermarket tire seller was told by BRP not to sell tires.... I think that's just a way to pass the buck and get out of doing them out of fear of liability. I take the rims in to have the tires mounted and while I have told them what they are for, I see no reason why to even tell them... for all they know it's just for a cool go-cart I built.... lol.

I've dealt with Discount for 30+ years and they've always taken great care of me.

I agree I can't see why this thread is going again for the ? Time ,I couldn't wait get get those horrible oem tires off put a high quality steel belted car tire on and instant huge improvement every new car or truck I've owned came with the cheapest tire they could buy just to get them out the door , like firefly said put a good car tire on and and you will never go back I don't even see the argument here but it keeps coming up my Michelins have 15,000 mi on them and are still at 90% tread

 

[Firefly]

I've mounted a few rear tires myself.... By hand , but I usually have a buddy of mine mount the rears.


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[Bob Denman]

:shocked: Don't tell the Sheep that! :shocked:

 

[SPECTACUALR SPIDERMAN]

i can't say anything about it, but next time i pull a wheel off my bike i take the tire off & compare the bead area if i remember
i will post it on the forum.